MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS uploads or disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, further supporting a malicious purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://asi-filter.pl/files/file/natitiw.pdf
- https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ba45c75c92---pizakadafim.pdf
- http://flywings.sk/UserFiles/file/77353056161.pdf
- http://chistogood.ru/admin/ckfinder/userfiles/files/50315774270.pdf
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608607de08a3f---72322154218.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2fa9323e7---74559682719.pdf
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/503f6b9a0373a3d2aced1d28f17f05bc/15416744859.pdf
- http://ritadas.in/userfiles/file/vuzerixatudov.pdf
- https://psychologgia.pl/Upload/file/kiwamopug.pdf
- http://archissimo.eu/userfiles/files/35230188011.pdf
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/27a6dd24e99a38d9e3664a92584200f6/mefigelurakidebarewo.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ff6353767b---78497779454.pdf
- http://whsclass1968.com/clients/f/f8/f849445bb2fb8f42e7c863050dc1ba38/File/zurejugatunoxemipexamok.pdf
- https://ludifrance.fr/userfiles/file/momiretulalidasamisagog.pdf
- http://954move.com/clients/4890/File/bebugu.pdf
- http://geose.ru/userfiles/file/61428455125.pdf
- http://www.derbysignandgraphics.com/uploads/file/vowojawo.pdf
- https://avigailpekelman.com/sites/default/files/file/89804489781.pdf
- https://gyn-koe70.de/obrazky/file/ritib.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606d815ec287e---fidovopevutijemoxen.pdf
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1609d2a53ca14d---puxexilazazinewu.pdf
- http://monroehighwildcats.com/clients/40160/File/sepagakasejafuw.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=3.2+simplifying+expressions+with+rational+exponents+and+radicals+answer+key
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010247.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10247 | 16792 bytes |
font_01_sfnt_off00011a59.bindc4c871708b97c5efa9bc5d94c5dbb69ba61e9950d2e48a7f0b3b1db4b9877d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A59 | 17228 bytes |
font_02_sfnt_off00014754.bin168ac8149566152d5526acd9dc1ec511ea207093a2907a293e6531746f4e9773 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14754 | 11720 bytes |
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